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논문 기본 정보

자료유형
학술저널
저자정보
최일경 (한국수자원공사) 신창수 (한국수자원공사) 백인호 (한국수자원공사) 임재철 (한국수자원공사) 정찬우 (한국수자원공사) 이성진 (한국수자원공사) 박정욱 (한국수자원공사)
저널정보
대한상하수도학회 상하수도학회지 상하수도학회지 제28권 제2호
발행연도
2014.1
수록면
249 - 255 (7page)

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So many drinking water treatment plants are under various difficulties by new reinforced effluent standards. Since the target turbidity, much higher than annual average, for designing sludge thickener have to be set to confront high turbidity season, the sludge at thickener should be put up for a long time during usual days. So the soluble manganese and chloroform may be formed under the anaerobic environment in the sludge thickener when the sludge retention time is longer with low turbidity. This phenomenon results in difficulties to keep regulatory level of the discharged effluent. For an effort to overcome the problems, a sludge aeration was successfully implemented into the thickening process. As a result, the final effluent quality and sludge volume were much improved; 41 % of manganese, 62 % of chloroform and 35 % of sludge volume. Additionally, effluent quality was improved ; 61 % of Manganese on aeration with pH control and we could make sure of stability effluent quality despite a long sludge retention time. We recommended the standard of installation sludge aeration equipment to nationally supply water treatment plant under effluent water quality problem ; Manganese, Chloroform, etc.

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